APA

Orem R. C., . (1969). Montessori and the special child. New York: Putnam.

Chicago

Orem Reginald Calvert, . 1969. Montessori and the special child. New York: Putnam.

Harvard

Orem R. C., . (1969). Montessori and the special child. New York: Putnam.

MLA

Orem Reginald Calvert, . Montessori and the special child. New York: Putnam. 1969.